420272353729 has 4 divisors (see below), whose sum is σ = 420286990000. Its totient is φ = 420257717460.

The previous prime is 420272353727. The next prime is 420272353751. The reversal of 420272353729 is 927353272024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420272353729 - 2¹ = 420272353727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420272353723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274979 + ... + 7332520.

It is an arithmetic number, because the mean of its divisors is an integer number (105071747500).

Almost surely, 2^420272353729 is an apocalyptic number.

It is an amenable number.

420272353729 is a deficient number, since it is larger than the sum of its proper divisors (14636271).

420272353729 is a wasteful number, since it uses less digits than its factorization.

420272353729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14636270.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 420272353729 in words is "four hundred twenty billion, two hundred seventy-two million, three hundred fifty-three thousand, seven hundred twenty-nine".